package com.leeon.thread;

import java.util.ArrayList;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

class TasWithResult implements Callable<String>{

	private int id;
	
	public  TasWithResult(int id) {
		this.id = id;
	}
	
	@Override
	public String call() throws Exception {
		return "result of taskwithresult  " + id;
	}
	
}

public class CallableDemo {
	public static void main(String[] args) {
		ExecutorService exec = Executors.newCachedThreadPool();
		ArrayList<Future<String>> results = new ArrayList<Future<String>>();
		for(int i = 0; i < 10; i++) {
			results.add(exec.submit(new TasWithResult(i)));
		}
		try {
			for(Future<String> fs: results) {
				System.out.println(fs.get());
			}
		} catch (Exception e) {
			System.out.println(e);
		}finally {
			exec.shutdown();
		}
	}
}
